| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hudi.hive.util; |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| public class ColumnNameXLator { |
| |
| private static Map<String, String> xformMap = new HashMap<>(); |
| |
| public static String translateNestedColumn(String colName) { |
| Map.Entry<String,String> entry; |
| for (Iterator<Map.Entry<String, String>> ic = xformMap.entrySet().iterator(); ic.hasNext(); colName = |
| colName.replaceAll(entry.getKey(), entry.getValue())) { |
| entry = ic.next(); |
| } |
| |
| return colName; |
| } |
| |
| public static String translateColumn(String colName) { |
| return colName; |
| } |
| |
| public static String translate(String colName, boolean nestedColumn) { |
| return !nestedColumn ? translateColumn(colName) : translateNestedColumn(colName); |
| } |
| |
| static { |
| xformMap.put("\\$", "_dollar_"); |
| } |
| } |